According to the Limited Nuclear Test Ban Treaty was signed by the United States and the Soviet Union on August 5, 1963 in Moscow. The ban prohibits any nuclear explosions and nuclear weapon tests in water, atmosphere or space. Technically it does not ban testing underground but it does ban it if they cause radioactive debris outside of the state's territory.
The U.S. invaded the Caribbean island of Haiti (B) in 1994 until 1995 in order to reinstall a new government in Haiti following the 1991 coup d'etat which overthrew a democratically elected leader.
